28944912 has 40 divisors (see below), whose sum is σ = 74982304. Its totient is φ = 9621504.

The previous prime is 28944911. The next prime is 28944919. The reversal of 28944912 is 21944982.

It is not an unprimeable number, because it can be changed into a prime (28944911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24528 + ... + 25680.

Almost surely, 2^28944912 is an apocalyptic number.

It is an amenable number.

28944912 is an abundant number, since it is smaller than the sum of its proper divisors (46037392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28944912 is a wasteful number, since it uses less digits than its factorization.

28944912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687 (or 1681 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 28944912 is about 5380.0475834327. The cubic root of 28944912 is about 307.0370215692.

The spelling of 28944912 in words is "twenty-eight million, nine hundred forty-four thousand, nine hundred twelve".